Belt it out! Now you can turn any party into a Karaoke party! Our Portable Karaoke with Wireless Microphones is all you need to break into song at the drop of a hat. We've included two wireless rechargeable microphones that connect via Bluetooth wireless technology, plus 5 different voice-changing effects to enhance your performances. The built-in rechargeable battery ensures you enjoy up to 9 hours of playtime, so the party doesn't have to stop until you do! Doesn't that sound like music to your ears? Groove onn.